Ventilator for locomotive-engines.



No. 697,493. Patented Apr. l5, |902.

N. KEHSHNER.

VENTILATOR FUR LO'GOMOTIVE ENGINES. (Application med Nov. 2e. 1901.) (No Model.)

Snowdon IIIIILIIII ll Illlll UNITED STATES PATENT OFFICE.

NATI-IAN KERSI-INER, OF READING, PENNSYLVANIA.

VENTILATOR FOR LOCOMOYTIVE-ENGINES.

sPEcrrrcAr'IoN forming pere ef Letters Patent No. 697,493, aerea April 15, 1902.

Application filed November 26, 1901. @arial No. 83,685. (No model.)

To 1f/ZZ whom t may concern:

Be it known that I, NATHAN KERsHNER, a citizen of the United States, residing in the city of Reading, county of Berks, State of Pennsylvania, have invented certain new and useful Improvements in Ventilator Mechanisu1 for Locomotive Firemen, of which the following is a specification.

My invention relates to locomotive construction, and has for its object the providing of means at the tire-box end for making the position of the fireman at the rear thereof more comfortable under unfavorable Weather conditions than heretofore. The main discomfort and hardship to the fireman, especially on the 1arge-size locomotives now commonly built, results from the terrific heat to which the fireman is subjected While engaged in most arduous labor and the comparative lack of cool air which is furnished to counteract lthis heat. My invention provides for overcoming this difficulty, as well as otherwise increasing the comfort of the fireman, and is fully described in connection with the accompanying drawings and specifically pointed out in the claims.

Figure lis a side elevation showing the rear or fire-box end of a locomotive, with the eab -thereon shown in cross-section on the line w of Fig. 2 and provided with my improvements, the forward end of the separate tender commonly employed being also indicated. Fig. 2 is a plan view of the same.

A represents the fire-box of a locomotive; B, the cab thereon, having a rearwardly-overhanging roof B, and Cthe tender, provided with a Water-tank D, divided at itsforward end, as usual, to form two separate legs D D and an intermediate place C for coal storage and for the accommodation of the reman while he is attending the fire.

In order to give the fireman the benefit of the rapid change of air made possible by the movement of the locomotive, notwithstanding that his duties locate him in'protected position behind the irefbox, I, in the first place, provide an opening h in the cab-roof adjacent to the end of the fire-box and an air-conduit mechanism in connection therewith, wherebya regulated supply of fresh air may be forced down through said opening and utilized to carry olf and mingle with the overheated air at the rear of the fire-box. This mechanism consists, as shown, of a trap-door E, which is hinged to the cab-roof at the rear of the opening Z), as indicated at f, and provided with any suitable operating-rods 71, t, whereby the front portion of said door may be raised to a greater or less extent above the level of the roof, and so serve to catch and deflect the air, as indicated by the arrow. To more eectually accomplish this, I provide a deflecting-plate E', depending below the roof, and side plates e e, thereby forming what may be termed an inverted scoop, which may be regulated by the reman to deliver a greater or less downward flowof air, as desired, or may be entirely closed, if preferred, as indicated in dotted lines. In connection with this down Vward supply of air I find it highly advantageous to provide for a sidewise supply when desired, and for this purpose I employ lateral air-deflector plates G G, which are each removable, hinged at g, adjacent to one edge, and of sufficient width to'extendfrom the outer edge of the cab t-o the inner wall of the adjacent tank-leg D', so as to form rearwardlya converging side walls, partially closing what is ordinarily the open space between the end of the cab B and the tank. These plates, as shown, extend somewhat below the footboard or cab-floor h', but terminate above the level ofthe tender-Hoor. The portion of these plates above the cab-floor b' is adapted to catch and direct rearwardly inward the currents of air which in mild weather, when the cab-doors are open, pass through the cab from front to rear, thus causing rearwardly-converging lateral currents of air, which, in connection with the downward current through the roof-opening b, serve to greatly lessen the heat in the space occupied by the fireman and correspondingly increase his comfort and capacity for work. In addition to serving this purpose these plates'may be also utilized in stormy weather, when the cab-'doors are closed, to protect the fireman to a considerable extent from the outside blow of snow or sleet. When desired, they may be either swung inward against the cab or entirely removed by merely lifting them off their hinged connections.

l. The combination with the fire-box of a locomotive, of a cab thereon having its roof IOO extended rearwardly beyond the fire-box and provided with an air-inlet opening adjacent to the end of the fire-box, and an air-conduit comprising an adjustable air-scooping portion secured to the extended roof above said opening and a deiecting portion below said opening substantially as set forth.

2. The combination with the fire-box of a. locomotive of a cab thereon having its rear face approximately in the plane of the rear face of the fire-box, of rearwardly-converging air-deector plates located at opposite sides of said cab substantially as and for the purpose set forth.

3. The combination with the fire-box of a locomotive, of a cab thereon having its roof extended rearwardly beyond the fire-box and provided with an air-inlet opening adjacent to the end of the fire-box, an air-conduit comprising an adjustable air-scooping porzo NATI-IAN KERSHNER.

Witnesses:

D. M. STEWART, W. G. STEWART. 

